Thank you for the request. I will take this into consideration, and give it some thought. (It may take some time to gather the required information.)
The direct response, of course, is that astrology is inclined to draw you to the conclusion that your fate is told by the stars. Astronomy, on the other hand, believes that the stars have nothing to do with fate, and your life is what you make of it.
Astrology was developed early on, and no longer follows the later development (of the science) of astronomy.